60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
|
/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
|
||
|
|
/*
|
||
|
|
* Copyright(c) 2018 Intel Corporation.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef HFI1_RC_H
|
||
|
|
#define HFI1_RC_H
|
||
|
|
|
||
|
|
/* cut down ridiculously long IB macro names */
|
||
|
|
#define OP(x) IB_OPCODE_RC_##x
|
||
|
|
|
||
|
|
static inline void update_ack_queue(struct rvt_qp *qp, unsigned int n)
|
||
|
|
{
|
||
|
|
unsigned int next;
|
||
|
|
|
||
|
|
next = n + 1;
|
||
|
|
if (next > rvt_size_atomic(ib_to_rvt(qp->ibqp.device)))
|
||
|
|
next = 0;
|
||
|
|
qp->s_tail_ack_queue = next;
|
||
|
|
qp->s_acked_ack_queue = next;
|
||
|
|
qp->s_ack_state = OP(ACKNOWLEDGE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void rc_defered_ack(struct hfi1_ctxtdata *rcd,
|
||
|
|
struct rvt_qp *qp)
|
||
|
|
{
|
||
|
|
if (list_empty(&qp->rspwait)) {
|
||
|
|
qp->r_flags |= RVT_R_RSP_NAK;
|
||
|
|
rvt_get_qp(qp);
|
||
|
|
list_add_tail(&qp->rspwait, &rcd->qp_wait_list);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline u32 restart_sge(struct rvt_sge_state *ss, struct rvt_swqe *wqe,
|
||
|
|
u32 psn, u32 pmtu)
|
||
|
|
{
|
||
|
|
u32 len;
|
||
|
|
|
||
|
|
len = delta_psn(psn, wqe->psn) * pmtu;
|
||
|
|
return rvt_restart_sge(ss, wqe, len);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void release_rdma_sge_mr(struct rvt_ack_entry *e)
|
||
|
|
{
|
||
|
|
if (e->rdma_sge.mr) {
|
||
|
|
rvt_put_mr(e->rdma_sge.mr);
|
||
|
|
e->rdma_sge.mr = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
struct rvt_ack_entry *find_prev_entry(struct rvt_qp *qp, u32 psn, u8 *prev,
|
||
|
|
u8 *prev_ack, bool *scheduled);
|
||
|
|
int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode, u64 val,
|
||
|
|
struct hfi1_ctxtdata *rcd);
|
||
|
|
struct rvt_swqe *do_rc_completion(struct rvt_qp *qp, struct rvt_swqe *wqe,
|
||
|
|
struct hfi1_ibport *ibp);
|
||
|
|
|
||
|
|
#endif /* HFI1_RC_H */
|